Free Circuit Simulator-Circuit Design and Simulation Software List
Circuit Diagram - A Circuit Diagram Maker
Circuit Diagram Maker | Free Online App
Circuit design software that makes it easy to design, document, and debug electronics projects for the breadboard (more info in the comments). Would you find this useful? (x-post with r/ArduinoProjects) : r/arduino
Best (Free) PCB Design Software | ElectroSchematics.com
Our Top 10 printed circuit design software programmes